This aviation hydraulic fluid is a red-dyed, mineral-based product designed for severe-duty applications. It meets military specification MIL-PRF-5606H and is filtered and hermetically sealed. The fluid offers excellent low-temperature performance, anti-wear properties, and protection against oxidation and corrosion, making it suitable for environments requiring clean hydraulic
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Overview
Phillips 66® X/C 5606H Aviation Hydraulic Fluid provides excellent wear protection for hydraulic pumps and motors, protects hydraulic system components against rust and corrosion, and is resistant to excessive foam buildup that can cause poor or sluggish hydraulic system response. It meets the cleanliness requirements for “super clean” hydraulic fluid for use in modern aircraft hydraulic systems and is dyed red for identification and leak detection purposes. X/C Aviation Hydraulic Fluids are recommended for use in non-pressurized systems operating between -54°C and 90°C (-65°F to 194°F), and in pressurized systems operating between -54°C and 135°C (-65°F to 275°F) at pressures up to 3,000 psi. Typical applications include aircraft and missile control systems, autopilots and shock absorbers, auto wreckers, boom trucks, and electrical service equipment (cherry pickers) where all-weather performance is required, industrial robotics, and hydraulic systems that require a “super clean” fluid for extended service life and reliability.
Features & Benefits
Very high viscosity index for use over a wide temperature range.
Outstanding low-temperature properties for reliable operation in cold conditions.
Excellent wear protection to extend the life of hydraulic components.
Resists deposit formation and viscosity increase due to oxidation.
Protects against rust and corrosion for enhanced durability.
Good foam resistance to ensure optimal hydraulic system performance.
Does not contain zinc or other heavy metals for environmental safety.
Specifications
Color: Red
Specific Gravity @ 60°F: 0.871
Density, lbs/gal @ 60°F: 7.25
Flash Point (PMCC), °C (°F): 90 (194)
Pour Point, °C (°F): -64 (-83)
Viscosity Index: 382
Water Content, ASTM D6304, ppm: 60
Technical Information
X/C 5606H Aviation Hydraulic Fluid meets the requirements of U.S. Military Specification MIL-PRF-5606H (supersedes MIL-O-5606, AN-O-336, AN-VV-O-336, and AAF-3580).
X/C 5606A Aviation Hydraulic Fluid meets the requirements of U.S. Military Specification MIL-H-5606A (obsolete).
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